1 /*****************************************************************************
2 * rpn.c : RPN evaluator for the HTTP Interface
3 *****************************************************************************
4 * Copyright (C) 2001-2006 the VideoLAN team
7 * Authors: Gildas Bazin <gbazin@netcourrier.com>
8 * Laurent Aimar <fenrir@via.ecp.fr>
9 * Christophe Massiot <massiot@via.ecp.fr>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
29 #include "vlc_strings.h"
31 static vlc_object_t *GetVLCObject( intf_thread_t *p_intf,
32 const char *psz_object,
33 vlc_bool_t *pb_need_release )
35 intf_sys_t *p_sys = p_intf->p_sys;
36 int i_object_type = 0;
37 vlc_object_t *p_object = NULL;
38 *pb_need_release = VLC_FALSE;
40 if( !strcmp( psz_object, "VLC_OBJECT_ROOT" ) )
41 i_object_type = VLC_OBJECT_ROOT;
42 else if( !strcmp( psz_object, "VLC_OBJECT_LIBVLC" ) )
43 p_object = VLC_OBJECT(p_intf->p_libvlc);
44 else if( !strcmp( psz_object, "VLC_OBJECT_INTF" ) )
45 p_object = VLC_OBJECT(p_intf);
46 else if( !strcmp( psz_object, "VLC_OBJECT_PLAYLIST" ) )
47 p_object = VLC_OBJECT(p_sys->p_playlist);
48 else if( !strcmp( psz_object, "VLC_OBJECT_INPUT" ) )
49 p_object = VLC_OBJECT(p_sys->p_input);
50 else if( !strcmp( psz_object, "VLC_OBJECT_VOUT" ) )
51 i_object_type = VLC_OBJECT_VOUT;
52 else if( !strcmp( psz_object, "VLC_OBJECT_AOUT" ) )
53 i_object_type = VLC_OBJECT_AOUT;
54 else if( !strcmp( psz_object, "VLC_OBJECT_SOUT" ) )
55 i_object_type = VLC_OBJECT_SOUT;
57 msg_Warn( p_intf, "unknown object type (%s)", psz_object );
59 if( p_object == NULL && i_object_type )
61 *pb_need_release = VLC_TRUE;
62 p_object = vlc_object_find( p_intf, i_object_type, FIND_ANYWHERE );
68 void E_(SSInit)( rpn_stack_t *st )
73 void E_(SSClean)( rpn_stack_t *st )
75 while( st->i_stack > 0 )
77 free( st->stack[--st->i_stack] );
81 void E_(SSPush)( rpn_stack_t *st, const char *s )
83 if( st->i_stack < STACK_MAX )
85 st->stack[st->i_stack++] = strdup( s );
89 char *E_(SSPop)( rpn_stack_t *st )
91 if( st->i_stack <= 0 )
97 return st->stack[--st->i_stack];
101 int E_(SSPopN)( rpn_stack_t *st, mvar_t *vars )
109 name = E_(SSPop)( st );
110 i = strtol( name, &end, 0 );
113 value = E_(mvar_GetValue)( vars, name );
121 void E_(SSPushN)( rpn_stack_t *st, int i )
125 snprintf( v, sizeof (v), "%d", i );
129 void E_(EvaluateRPN)( intf_thread_t *p_intf, mvar_t *vars,
130 rpn_stack_t *st, char *exp )
132 intf_sys_t *p_sys = p_intf->p_sys;
134 while( exp != NULL && *exp != '\0' )
147 p = E_(FirstWord)( exp, exp );
148 E_(SSPush)( st, exp );
154 p = E_(FirstWord)( exp, exp );
158 exp += strlen( exp );
170 /* 1. Integer function */
171 if( !strcmp( s, "!" ) )
173 E_(SSPushN)( st, ~E_(SSPopN)( st, vars ) );
175 else if( !strcmp( s, "^" ) )
177 E_(SSPushN)( st, E_(SSPopN)( st, vars ) ^ E_(SSPopN)( st, vars ) );
179 else if( !strcmp( s, "&" ) )
181 E_(SSPushN)( st, E_(SSPopN)( st, vars ) & E_(SSPopN)( st, vars ) );
183 else if( !strcmp( s, "|" ) )
185 E_(SSPushN)( st, E_(SSPopN)( st, vars ) | E_(SSPopN)( st, vars ) );
187 else if( !strcmp( s, "+" ) )
189 E_(SSPushN)( st, E_(SSPopN)( st, vars ) + E_(SSPopN)( st, vars ) );
191 else if( !strcmp( s, "-" ) )
193 int j = E_(SSPopN)( st, vars );
194 int i = E_(SSPopN)( st, vars );
195 E_(SSPushN)( st, i - j );
197 else if( !strcmp( s, "*" ) )
199 E_(SSPushN)( st, E_(SSPopN)( st, vars ) * E_(SSPopN)( st, vars ) );
201 else if( !strcmp( s, "/" ) )
205 j = E_(SSPopN)( st, vars );
206 i = E_(SSPopN)( st, vars );
208 E_(SSPushN)( st, j != 0 ? i / j : 0 );
210 else if( !strcmp( s, "%" ) )
214 j = E_(SSPopN)( st, vars );
215 i = E_(SSPopN)( st, vars );
217 E_(SSPushN)( st, j != 0 ? i % j : 0 );
219 /* 2. integer tests */
220 else if( !strcmp( s, "=" ) )
222 E_(SSPushN)( st, E_(SSPopN)( st, vars ) == E_(SSPopN)( st, vars ) ? -1 : 0 );
224 else if( !strcmp( s, "!=" ) )
226 E_(SSPushN)( st, E_(SSPopN)( st, vars ) != E_(SSPopN)( st, vars ) ? -1 : 0 );
228 else if( !strcmp( s, "<" ) )
230 int j = E_(SSPopN)( st, vars );
231 int i = E_(SSPopN)( st, vars );
233 E_(SSPushN)( st, i < j ? -1 : 0 );
235 else if( !strcmp( s, ">" ) )
237 int j = E_(SSPopN)( st, vars );
238 int i = E_(SSPopN)( st, vars );
240 E_(SSPushN)( st, i > j ? -1 : 0 );
242 else if( !strcmp( s, "<=" ) )
244 int j = E_(SSPopN)( st, vars );
245 int i = E_(SSPopN)( st, vars );
247 E_(SSPushN)( st, i <= j ? -1 : 0 );
249 else if( !strcmp( s, ">=" ) )
251 int j = E_(SSPopN)( st, vars );
252 int i = E_(SSPopN)( st, vars );
254 E_(SSPushN)( st, i >= j ? -1 : 0 );
256 /* 3. string functions */
257 else if( !strcmp( s, "strcat" ) )
259 char *s2 = E_(SSPop)( st );
260 char *s1 = E_(SSPop)( st );
261 char *str = malloc( strlen( s1 ) + strlen( s2 ) + 1 );
266 E_(SSPush)( st, str );
271 else if( !strcmp( s, "strcmp" ) )
273 char *s2 = E_(SSPop)( st );
274 char *s1 = E_(SSPop)( st );
276 E_(SSPushN)( st, strcmp( s1, s2 ) );
280 else if( !strcmp( s, "strncmp" ) )
282 int n = E_(SSPopN)( st, vars );
283 char *s2 = E_(SSPop)( st );
284 char *s1 = E_(SSPop)( st );
286 E_(SSPushN)( st, strncmp( s1, s2 , n ) );
290 else if( !strcmp( s, "strsub" ) )
292 int n = E_(SSPopN)( st, vars );
293 int m = E_(SSPopN)( st, vars );
295 char *s = E_(SSPop)( st );
307 str = malloc( i_len + 1 );
309 memcpy( str, s + m - 1, i_len );
312 E_(SSPush)( st, str );
316 else if( !strcmp( s, "strlen" ) )
318 char *str = E_(SSPop)( st );
320 E_(SSPushN)( st, strlen( str ) );
323 else if( !strcmp( s, "str_replace" ) )
325 char *psz_to = E_(SSPop)( st );
326 char *psz_from = E_(SSPop)( st );
327 char *psz_in = E_(SSPop)( st );
328 char *psz_in_current = psz_in;
329 char *psz_out = malloc( strlen(psz_in) * strlen(psz_to) + 1 );
330 char *psz_out_current = psz_out;
332 while( (p = strstr( psz_in_current, psz_from )) != NULL )
334 memcpy( psz_out_current, psz_in_current, p - psz_in_current );
335 psz_out_current += p - psz_in_current;
336 strcpy( psz_out_current, psz_to );
337 psz_out_current += strlen(psz_to);
338 psz_in_current = p + strlen(psz_from);
340 strcpy( psz_out_current, psz_in_current );
341 psz_out_current += strlen(psz_in_current);
342 *psz_out_current = '\0';
344 E_(SSPush)( st, psz_out );
350 else if( !strcmp( s, "url_extract" ) )
352 char *url = E_(mvar_GetValue)( vars, "url_value" );
353 char *name = E_(SSPop)( st );
357 E_(ExtractURIValue)( url, name, value, 512 );
359 tmp = E_(FromUTF8)( p_intf, value );
360 E_(SSPush)( st, tmp );
364 else if( !strcmp( s, "url_encode" ) )
366 char *url = E_(SSPop)( st );
369 value = E_(ToUTF8)( p_intf, url );
372 value = vlc_UrlEncode( url );
374 E_(SSPush)( st, value );
377 else if( !strcmp( s, "addslashes" ) )
379 char *psz_src = E_(SSPop)( st );
383 p = psz_dest = malloc( strlen( str ) * 2 + 1 );
385 while( *str != '\0' )
387 if( *str == '"' || *str == '\'' || *str == '\\' )
396 E_(SSPush)( st, psz_dest );
400 else if( !strcmp( s, "stripslashes" ) )
402 char *psz_src = E_(SSPop)( st );
406 p = psz_dest = strdup( psz_src );
410 if( *str == '\\' && *(str + 1) )
418 E_(SSPush)( st, psz_dest );
422 else if( !strcmp( s, "htmlspecialchars" ) )
424 char *psz_src = E_(SSPop)( st );
427 psz_dest = convert_xml_special_chars( psz_src );
429 E_(SSPush)( st, psz_dest );
433 else if( !strcmp( s, "realpath" ) )
435 char *psz_src = E_(SSPop)( st );
436 char *psz_dir = E_(RealPath)( p_intf, psz_src );
438 E_(SSPush)( st, psz_dir );
442 /* 4. stack functions */
443 else if( !strcmp( s, "dup" ) )
445 char *str = E_(SSPop)( st );
446 E_(SSPush)( st, str );
447 E_(SSPush)( st, str );
450 else if( !strcmp( s, "drop" ) )
452 char *str = E_(SSPop)( st );
455 else if( !strcmp( s, "swap" ) )
457 char *s1 = E_(SSPop)( st );
458 char *s2 = E_(SSPop)( st );
460 E_(SSPush)( st, s1 );
461 E_(SSPush)( st, s2 );
465 else if( !strcmp( s, "flush" ) )
470 else if( !strcmp( s, "store" ) )
472 char *value = E_(SSPop)( st );
473 char *name = E_(SSPop)( st );
475 E_(mvar_PushNewVar)( vars, name, value );
479 else if( !strcmp( s, "value" ) )
481 char *name = E_(SSPop)( st );
482 char *value = E_(mvar_GetValue)( vars, name );
484 E_(SSPush)( st, value );
488 /* 5. player control */
489 else if( !strcmp( s, "vlc_play" ) )
491 int i_id = E_(SSPopN)( st, vars );
494 i_ret = playlist_Control( p_sys->p_playlist, PLAYLIST_VIEWPLAY,
496 playlist_ItemGetById( p_sys->p_playlist,
498 msg_Dbg( p_intf, "requested playlist item: %i", i_id );
499 E_(SSPushN)( st, i_ret );
501 else if( !strcmp( s, "vlc_stop" ) )
503 playlist_Control( p_sys->p_playlist, PLAYLIST_STOP );
504 msg_Dbg( p_intf, "requested playlist stop" );
506 else if( !strcmp( s, "vlc_pause" ) )
508 playlist_Control( p_sys->p_playlist, PLAYLIST_PAUSE );
509 msg_Dbg( p_intf, "requested playlist pause" );
511 else if( !strcmp( s, "vlc_next" ) )
513 playlist_Control( p_sys->p_playlist, PLAYLIST_SKIP, 1 );
514 msg_Dbg( p_intf, "requested playlist next" );
516 else if( !strcmp( s, "vlc_previous" ) )
518 playlist_Control( p_sys->p_playlist, PLAYLIST_SKIP, -1 );
519 msg_Dbg( p_intf, "requested playlist previous" );
521 else if( !strcmp( s, "vlc_seek" ) )
523 char *psz_value = E_(SSPop)( st );
524 E_(HandleSeek)( p_intf, psz_value );
525 msg_Dbg( p_intf, "requested playlist seek: %s", psz_value );
528 else if( !strcmp( s, "vlc_var_type" )
529 || !strcmp( s, "vlc_config_type" ) )
531 vlc_object_t *p_object;
532 const char *psz_type = NULL;
535 if( !strcmp( s, "vlc_var_type" ) )
537 char *psz_object = E_(SSPop)( st );
538 char *psz_variable = E_(SSPop)( st );
539 vlc_bool_t b_need_release;
541 p_object = GetVLCObject( p_intf, psz_object, &b_need_release );
543 if( p_object != NULL )
544 i_type = var_Type( p_object, psz_variable );
545 free( psz_variable );
547 if( b_need_release && p_object != NULL )
548 vlc_object_release( p_object );
552 char *psz_variable = E_(SSPop)( st );
553 p_object = VLC_OBJECT(p_intf);
554 i_type = config_GetType( p_object, psz_variable );
555 free( psz_variable );
558 if( p_object != NULL )
560 switch( i_type & VLC_VAR_TYPE )
563 psz_type = "VLC_VAR_BOOL";
565 case VLC_VAR_INTEGER:
566 psz_type = "VLC_VAR_INTEGER";
569 psz_type = "VLC_VAR_HOTKEY";
572 psz_type = "VLC_VAR_STRING";
575 psz_type = "VLC_VAR_MODULE";
578 psz_type = "VLC_VAR_FILE";
580 case VLC_VAR_DIRECTORY:
581 psz_type = "VLC_VAR_DIRECTORY";
583 case VLC_VAR_VARIABLE:
584 psz_type = "VLC_VAR_VARIABLE";
587 psz_type = "VLC_VAR_FLOAT";
590 psz_type = "UNDEFINED";
594 psz_type = "INVALID";
596 E_(SSPush)( st, psz_type );
598 else if( !strcmp( s, "vlc_var_set" ) )
600 char *psz_object = E_(SSPop)( st );
601 char *psz_variable = E_(SSPop)( st );
602 vlc_bool_t b_need_release;
604 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
607 if( p_object != NULL )
609 vlc_bool_t b_error = VLC_FALSE;
610 char *psz_value = NULL;
614 i_type = var_Type( p_object, psz_variable );
616 switch( i_type & VLC_VAR_TYPE )
619 val.b_bool = E_(SSPopN)( st, vars );
620 msg_Dbg( p_intf, "requested %s var change: %s->%d",
621 psz_object, psz_variable, val.b_bool );
623 case VLC_VAR_INTEGER:
625 val.i_int = E_(SSPopN)( st, vars );
626 msg_Dbg( p_intf, "requested %s var change: %s->%d",
627 psz_object, psz_variable, val.i_int );
632 case VLC_VAR_DIRECTORY:
633 case VLC_VAR_VARIABLE:
634 val.psz_string = psz_value = E_(SSPop)( st );
635 msg_Dbg( p_intf, "requested %s var change: %s->%s",
636 psz_object, psz_variable, psz_value );
639 psz_value = E_(SSPop)( st );
640 val.f_float = atof( psz_value );
641 msg_Dbg( p_intf, "requested %s var change: %s->%f",
642 psz_object, psz_variable, val.f_float );
645 E_(SSPopN)( st, vars );
646 msg_Warn( p_intf, "invalid %s variable type %d (%s)",
647 psz_object, i_type & VLC_VAR_TYPE, psz_variable );
652 var_Set( p_object, psz_variable, val );
653 if( psz_value != NULL )
657 msg_Warn( p_intf, "vlc_var_set called without an object" );
658 free( psz_variable );
661 if( b_need_release && p_object != NULL )
662 vlc_object_release( p_object );
664 else if( !strcmp( s, "vlc_var_get" ) )
666 char *psz_object = E_(SSPop)( st );
667 char *psz_variable = E_(SSPop)( st );
668 vlc_bool_t b_need_release;
670 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
673 if( p_object != NULL )
678 i_type = var_Type( p_object, psz_variable );
679 var_Get( p_object, psz_variable, &val );
681 switch( i_type & VLC_VAR_TYPE )
684 E_(SSPushN)( st, val.b_bool );
686 case VLC_VAR_INTEGER:
688 E_(SSPushN)( st, val.i_int );
693 case VLC_VAR_DIRECTORY:
694 case VLC_VAR_VARIABLE:
695 E_(SSPush)( st, val.psz_string );
696 free( val.psz_string );
701 lldiv_t value = lldiv( val.f_float * 1000000, 1000000 );
702 snprintf( psz_value, sizeof(psz_value), "%lld.%06u",
703 value.quot, (unsigned int)value.rem );
704 E_(SSPush)( st, psz_value );
708 msg_Warn( p_intf, "invalid %s variable type %d (%s)",
709 psz_object, i_type & VLC_VAR_TYPE, psz_variable );
710 E_(SSPush)( st, "" );
715 msg_Warn( p_intf, "vlc_var_get called without an object" );
716 E_(SSPush)( st, "" );
718 free( psz_variable );
721 if( b_need_release && p_object != NULL )
722 vlc_object_release( p_object );
724 else if( !strcmp( s, "vlc_object_exists" ) )
726 char *psz_object = E_(SSPop)( st );
727 vlc_bool_t b_need_release;
729 vlc_object_t *p_object = GetVLCObject( p_intf, psz_object,
731 if( b_need_release && p_object != NULL )
732 vlc_object_release( p_object );
734 if( p_object != NULL )
735 E_(SSPush)( st, "1" );
737 E_(SSPush)( st, "0" );
739 else if( !strcmp( s, "vlc_config_set" ) )
741 char *psz_variable = E_(SSPop)( st );
742 int i_type = config_GetType( p_intf, psz_variable );
744 switch( i_type & VLC_VAR_TYPE )
747 case VLC_VAR_INTEGER:
748 config_PutInt( p_intf, psz_variable, E_(SSPopN)( st, vars ) );
753 case VLC_VAR_DIRECTORY:
755 char *psz_string = E_(SSPop)( st );
756 config_PutPsz( p_intf, psz_variable, psz_string );
762 char *psz_string = E_(SSPop)( st );
763 config_PutFloat( p_intf, psz_variable, atof(psz_string) );
768 msg_Warn( p_intf, "vlc_config_set called on unknown var (%s)",
771 free( psz_variable );
773 else if( !strcmp( s, "vlc_config_get" ) )
775 char *psz_variable = E_(SSPop)( st );
776 int i_type = config_GetType( p_intf, psz_variable );
778 switch( i_type & VLC_VAR_TYPE )
781 case VLC_VAR_INTEGER:
782 E_(SSPushN)( st, config_GetInt( p_intf, psz_variable ) );
787 case VLC_VAR_DIRECTORY:
789 char *psz_string = config_GetPsz( p_intf, psz_variable );
790 E_(SSPush)( st, psz_string );
797 lldiv_t value = lldiv( config_GetFloat( p_intf, psz_variable )
798 * 1000000, 1000000 );
799 snprintf( psz_string, sizeof(psz_string), "%lld.%06u",
800 value.quot, (unsigned int)value.rem );
801 E_(SSPush)( st, psz_string );
805 msg_Warn( p_intf, "vlc_config_get called on unknown var (%s)",
808 free( psz_variable );
810 else if( !strcmp( s, "vlc_config_save" ) )
812 char *psz_module = E_(SSPop)( st );
820 i_result = config_SaveConfigFile( p_intf, psz_module );
822 if( psz_module != NULL )
824 E_(SSPushN)( st, i_result );
826 else if( !strcmp( s, "vlc_config_reset" ) )
828 config_ResetAll( p_intf );
830 /* 6. playlist functions */
831 else if( !strcmp( s, "playlist_add" ) )
833 char *psz_name = E_(SSPop)( st );
834 char *mrl = E_(SSPop)( st );
836 input_item_t *p_input;
839 tmp = E_(ToUTF8)( p_intf, psz_name );
842 tmp = E_(ToUTF8)( p_intf, mrl );
846 p_input = E_(MRLParse)( p_intf, mrl, psz_name );
848 if( !p_input || !p_input->psz_uri || !*p_input->psz_uri )
851 msg_Dbg( p_intf, "invalid requested mrl: %s", mrl );
855 i_id = playlist_PlaylistAddInput( p_sys->p_playlist, p_input,
856 PLAYLIST_APPEND, PLAYLIST_END );
857 msg_Dbg( p_intf, "requested mrl add: %s", mrl );
859 E_(SSPushN)( st, i_id );
864 else if( !strcmp( s, "playlist_empty" ) )
866 playlist_LockClear( p_sys->p_playlist );
867 msg_Dbg( p_intf, "requested playlist empty" );
869 else if( !strcmp( s, "playlist_delete" ) )
871 int i_id = E_(SSPopN)( st, vars );
872 playlist_LockDeleteAllFromInput( p_sys->p_playlist, i_id );
873 msg_Dbg( p_intf, "requested playlist delete: %d", i_id );
875 else if( !strcmp( s, "playlist_move" ) )
877 /*int i_newpos =*/ E_(SSPopN)( st, vars );
878 /*int i_pos =*/ E_(SSPopN)( st, vars );
879 /* FIXME FIXME TODO TODO XXX XXX
880 do not release before fixing this
881 if ( i_pos < i_newpos )
883 playlist_Move( p_sys->p_playlist, i_pos, i_newpos + 1 );
887 playlist_Move( p_sys->p_playlist, i_pos, i_newpos );
889 msg_Dbg( p_intf, "requested to move playlist item %d to %d",
891 FIXME FIXME TODO TODO XXX XXX */
892 msg_Err( p_intf, "moving using indexes is obsolete. We need to update this function" );
894 else if( !strcmp( s, "playlist_sort" ) )
896 int i_order = E_(SSPopN)( st, vars );
897 int i_sort = E_(SSPopN)( st, vars );
898 i_order = i_order % 2;
900 /* FIXME FIXME TODO TODO XXX XXX
901 do not release before fixing this
902 playlist_RecursiveNodeSort( p_sys->p_playlist,
903 p_sys->p_playlist->p_general,
905 msg_Dbg( p_intf, "requested sort playlist by : %d in order : %d",
907 FIXME FIXME TODO TODO XXX XXX */
908 msg_Err( p_intf, "this needs to be fixed to use the new playlist framework" );
910 else if( !strcmp( s, "services_discovery_add" ) )
912 char *psz_sd = E_(SSPop)( st );
913 playlist_ServicesDiscoveryAdd( p_sys->p_playlist, psz_sd );
916 else if( !strcmp( s, "services_discovery_remove" ) )
918 char *psz_sd = E_(SSPop)( st );
919 playlist_ServicesDiscoveryRemove( p_sys->p_playlist, psz_sd );
922 else if( !strcmp( s, "services_discovery_is_loaded" ) )
924 char *psz_sd = E_(SSPop)( st );
926 playlist_IsServicesDiscoveryLoaded( p_sys->p_playlist, psz_sd ) );
929 else if( !strcmp( s, "vlc_volume_set" ) )
931 char *psz_vol = E_(SSPop)( st );
933 audio_volume_t i_volume;
934 aout_VolumeGet( p_intf, &i_volume );
935 if( psz_vol[0] == '+' )
937 i_value = atoi( psz_vol );
938 if( (i_volume + i_value) > AOUT_VOLUME_MAX )
939 aout_VolumeSet( p_intf, AOUT_VOLUME_MAX );
941 aout_VolumeSet( p_intf, i_volume + i_value );
943 else if( psz_vol[0] == '-' )
945 i_value = atoi( psz_vol );
946 if( (i_volume + i_value) < AOUT_VOLUME_MIN )
947 aout_VolumeSet( p_intf, AOUT_VOLUME_MIN );
949 aout_VolumeSet( p_intf, i_volume + i_value );
951 else if( strstr( psz_vol, "%") != NULL )
953 i_value = atoi( psz_vol );
954 if( i_value < 0 ) i_value = 0;
955 if( i_value > 400 ) i_value = 400;
956 aout_VolumeSet( p_intf, (i_value * (AOUT_VOLUME_MAX - AOUT_VOLUME_MIN))/400+AOUT_VOLUME_MIN);
960 i_value = atoi( psz_vol );
961 if( i_value > AOUT_VOLUME_MAX ) i_value = AOUT_VOLUME_MAX;
962 if( i_value < AOUT_VOLUME_MIN ) i_value = AOUT_VOLUME_MIN;
963 aout_VolumeSet( p_intf, i_value );
965 aout_VolumeGet( p_intf, &i_volume );
968 else if( !strcmp( s, "vlc_get_meta" ) )
970 char *psz_meta = E_(SSPop)( st );
971 char *psz_val = NULL;
972 if( p_sys->p_input && p_sys->p_input->input.p_item )
974 #define p_item p_sys->p_input->input.p_item
975 if( !strcmp( psz_meta, "ARTIST" ) )
977 psz_val = input_ItemGetInfo( p_item,
978 _(VLC_META_INFO_CAT), _(VLC_META_ARTIST) );
980 else if( !strcmp( psz_meta, "TITLE" ) )
982 psz_val = input_ItemGetInfo( p_item,
983 _(VLC_META_INFO_CAT), _(VLC_META_TITLE) );
984 if( psz_val == NULL )
985 psz_val = strdup( p_item->psz_name );
987 else if( !strcmp( psz_meta, "ALBUM" ) )
989 psz_val = input_ItemGetInfo( p_item,
990 _(VLC_META_INFO_CAT), _(VLC_META_COLLECTION) );
992 else if( !strcmp( psz_meta, "GENRE" ) )
994 psz_val = input_ItemGetInfo( p_item,
995 _(VLC_META_INFO_CAT), _(VLC_META_GENRE) );
999 psz_val = input_ItemGetInfo( p_item,
1000 _(VLC_META_INFO_CAT), psz_meta );
1004 if( psz_val == NULL ) psz_val = strdup( "" );
1005 E_(SSPush)( st, psz_val );
1009 else if( !strcmp( s, "vlm_command" ) || !strcmp( s, "vlm_cmd" ) )
1012 char *psz_cmd = strdup( "" );
1014 vlm_message_t *vlm_answer;
1016 /* make sure that we have a vlm object */
1017 if( p_intf->p_sys->p_vlm == NULL )
1018 p_intf->p_sys->p_vlm = vlm_New( p_intf );
1021 /* vlm command uses the ';' delimiter
1022 * (else we can't know when to stop) */
1023 while( strcmp( psz_elt = E_(SSPop)( st ), "" )
1024 && strcmp( psz_elt, ";" ) )
1027 (char *)malloc( strlen( psz_cmd ) + strlen( psz_elt ) + 2 );
1028 sprintf( psz_buf, "%s %s", psz_cmd, psz_elt );
1034 msg_Dbg( p_intf, "executing vlm command: %s", psz_cmd );
1035 vlm_ExecuteCommand( p_intf->p_sys->p_vlm, psz_cmd, &vlm_answer );
1037 if( vlm_answer->psz_value == NULL )
1039 psz_error = strdup( "" );
1043 psz_error = malloc( strlen(vlm_answer->psz_name) +
1044 strlen(vlm_answer->psz_value) +
1045 strlen( " : ") + 1 );
1046 sprintf( psz_error , "%s : %s" , vlm_answer->psz_name,
1047 vlm_answer->psz_value );
1050 E_(mvar_AppendNewVar)( vars, "vlm_error", psz_error );
1051 /* this is kind of a duplicate but we need to have the message
1052 * without the command name for the "export" command */
1053 E_(mvar_AppendNewVar)( vars, "vlm_value", vlm_answer->psz_value );
1054 vlm_MessageDelete( vlm_answer );
1059 else if( !strcmp( s, "snapshot" ) )
1061 if( p_sys->p_input )
1063 vout_thread_t *p_vout;
1064 p_vout = vlc_object_find( p_sys->p_input,
1065 VLC_OBJECT_VOUT, FIND_CHILD );
1069 vout_Control( p_vout, VOUT_SNAPSHOT );
1070 vlc_object_release( p_vout );
1071 msg_Dbg( p_intf, "requested snapshot" );
1079 E_(SSPush)( st, s );